Displaying 20 results from an estimated 10000 matches similar to: "R-alpha: predict.lm -- who ..?"
1997 Aug 18
1
R-beta: bug report
The following seems to be a bug when I tried to use the predict function.
> forbes
boil.pt pressure log.pressure
[1,] 194.5 20.79 303.4472
[2,] 194.3 20.79 303.4472
[3,] 197.9 22.40 310.9061
[4,] 198.4 22.67 312.1042
[5,] 199.4 23.15 314.1995
[6,] 199.9 23.35 315.0597
[7,] 200.9 23.89 317.3460
[8,] 201.1 23.99
1997 Dec 19
1
R-beta: a bug in the lm function ?
I ran a function called BoxCox, taken from the book by Venables and
Ripley, for checking the need for power transformation. This function
works fine using the version 0.50 of R, but gives an error message
with version 0.60.
The lm function in version 0.60 is different from that in version 0.50.
Is there a bug in the new lm function?
Kung-Sik Chan
>
1997 Nov 16
0
R-beta: installing new packages in window95 version of R
> From r-help-owner at stat.math.ethz.ch Mon Nov 17 11:20 NZD 1997
> Date: Sun, 16 Nov 1997 14:08:04 -0800
> From: Kung-Sik Chan <kchan at stat.uiowa.edu>
> To: r-help at stat.math.ethz.ch
> Subject: R-beta: installing new packages in window95 version of R
> Mime-Version: 1.0
>
> I have tried to install the leaps package in the window95 version of R.
> I used
2008 Feb 02
3
[LLVMdev] Problem Compiling llvm-gcc 4.2
>>
Dear All,
I have been trying for days but still cannot break this barrier. May I
get your help?
I have compiled llvm-2.1 successfully and make install. When I proceed
with llvm-gcc-4.2-2.1, however, I keep getting linking error as
attached. Some functions with totally different content conflict with
each other in linking process.
That is a Linux box (Debian, with 2.6.23-1
2015 Jun 12
2
Serie temporal interrumpida del tipo AirPassengers
Hola usuarios,
Necesito detectar si existe o no un cambio de tendencia y si dicho cambio es significativo, para una serie temporal del tipo AirPassengers, en la que
a partir de un determinado momento se ha hecho una campaña (supongamos que una promoción de vuelos).
Para ello he pensado varios métodos:
Usar la descomposición espectral de la muestra [decompose(AirPassengers)] y luego una Regresión
2005 Jun 07
1
Problems with userPassword when it's base64 encoded
I'm switching from OpenLDAP to the newly released Fedora Directory
Server (formely known as the Netscape Directory Server) as a LDAP
backend for my Samba domain.
I'm now faced with a problem regarding how Fedora DS handles the
userPassword field.
Unlike OpenLDAP it encodes it in base64 so instead of reading
userPassword: {SSHA}0lP+r3Z1NVan7Caf4CG9oSgnTbQRrv/p
it reads:
userPassword::
2013 Apr 24
0
[LLVMdev] Another missed optimization opportunity?
Hey Scott,
On Wed, Apr 24, 2013 at 1:40 PM, Scott Pakin <pakin at lanl.gov> wrote:
...
>
> Is there some semantic reason that the increments aren't allowed to be
> combined, or is this a missed optimization opportunity in LLVM?
>
>
I believe that the wildcard is the extern keyword.
Since the external symbol isn't resolved until link time, I suspect that it
would be
2008 Apr 01
1
plugin announcement: acts_as_fu
We''ve all seen the job listings. We know what they''re looking for.
Rockstars. Code Monkeys. Rails Ninjas.
And you''re left thinking, "But I''m just a programmer." Well, not
anymore. Today, you become a Rails Kung-Fu Master!
"Not me," you say. "I''ve already tried using all the acts_as_something
plugins and all the something_fu
2005 Feb 07
1
ROracle problem.
ROracle ploblem
I can't install ROracle in the window XP. Is there any
way to install ROracle package on the windows OS ? I
think I can enhance data acquisition performance using
oracle native dirver instead of using ODBC.
Tae Sik Han.
North Carolina State University.
2012 Jul 25
3
lagged variables
hi guys,
i have some trouble in creating lagged variables to use as external
regressors.
i'm trying to use lag(x) but it gives me as result the same time series (x),
adding this part at the end:
attr(,"tsp")
[1] 0 2323 1
where do i wrong?are there other functions to be used?
thanks
sara
--
View this message in context:
2006 Apr 12
2
Inverting validates_format_of
I''ve got a regex validation on one of the inputs to my application, a
file path. Now these only ever come from trusted users
(administrators), but it would still be good to catch the most obvious
attempts at directory traversal, etc.
I''ve already got a regex that only allows \w then -, . and /. However,
I want to stop two dots in a row, so I was wondering how to make the
2002 Aug 06
1
Questions about lexical scope
Dear R-users,
The numerical integration example given in Gentleman and Ihaka (2000),
"Lexical Scope and Statistical Computing," JCGS, 9, 491-508,
is very interesting and helpful in understanding how lexical scope
is about.
However, I got some questions that I just can't figure out.
First all, allow me to copy the two functions given by the authors:
midpoint <- function(f, a,
2005 Oct 11
3
Is this correct?
Dear userR,
With the following results, are they correct or acceptable?
> x <- c(1.4, 1.2, 2.8)
> sum(x)
[1] 5.4
> sum(x) == 5.4
[1] FALSE
> (1.4 + 1.2 + 2.8) - 5.4
[1] -8.881784e-16
> (1.4 + 1.2) - 2.6
[1] -4.440892e-16
> 2.6 - 1.5 - 1.1
[1] 0
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor
2004 Oct 21
2
How to calculate a double integral ...?
Dear R-Friends,
How can I calculate a double integral like
\int_a^b \int_c^y g(x, y) dx dy
where a, b, c are constants, g(x, y), e.g.,
g(x, y) = tan(x + y).
I tried to nested integrate() and adapt(),
but none of them working, seemingly due to the
limits can not be specified constants.
Best regards,
C. Joseph Lu
Department of Statistics
National Cheng-Kung University
Voice:
2008 Feb 07
1
Greek letters in legend without a space
I am trying to make a figure legend that says "uM" (but replace "u" with
mu).
When I use the following script, my legend looks more like "u M", rather
than "uM".
> legend(1,1, c(expression(1~mu~M)))
How do I get rid of the space R places in when using the expression command
to insert a greek letter?
Thanks very much in advance
Ming Kung
Graduate
2008 Jul 26
1
Coarsening the Resolution of a Dataset
Dear all,
I have gridded data at 5' (minutes) resolution, which I intend to coarsen to 0.5 degrees. How would I go about doing this in R? I've had a search online and haven't found anything obvious, so any help would be gratefully received.
I'm assuming that there will be several 'coarsening' techniques available - I'm after something fairly simple, which for example,
2009 Dec 27
3
[PATCH 1/2] drm/nv50: align size of buffer object to the right boundaries.
- Depth and stencil buffers are supposed to be large enough in general.
Signed-off-by: Maarten Maathuis <madman2003 at gmail.com>
---
drivers/gpu/drm/nouveau/nouveau_bo.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index e342a41..9fc4bd6 100644
---
2010 Jan 27
1
Asterisk, NAT, and RTP?
Hello
I think I finally understood the issue/solution, but I'd like to make
sure I'm correct:
- In Diana Cionoiu's famous article on Freshmeat
(http://freshmeat.net/articles/nat-traversal-for-the-sip-protocol),
regardless of whether SIP end-points use a public IP or are behind a
NAT, RTP packets flow directly between the two SIP end-points because
the SIP server only acts... as an
2000 Aug 04
1
xlab=expression(...) won't work.
Dear all,
I found that the plotmath seems won't work on xlab in plot
(and other plot functions including matplot, contour, ...):
> plot(1:10, 1:10, xlab=expression(alpha))
the plot shows nothing for x-label.
My R-version is R.1.1.0
> version
_
platform Windows
arch x86
os Win32
system x86, Win32
status
major 1
2008 Jan 04
1
predict.lm removes rownames for a single row. Why?
predict.lm keeps row names when working from several rows in
newdata, but always removes rowname from a single row.
The rownames are removed by the line in predict.lm
predictor <- drop(X[, piv, drop = FALSE] %*% beta[piv])
What is the reason for that decision? I usually want to
retain the row names.
tmp <- data.frame(x=1:4, y=c(1,3,2,5))
tmp.lm <- lm(y ~ x, data=tmp)
tmp.new <-